中文数据手册

৛௢ᅏ՗‫ٷݣ‬ഗ
AD8221
༬Ⴀ
૶থ཮
–IN 1
8 +VS
RG 2
7 VOUT
RG 3
6 REF
+IN 4
AD8221
5 –VS
TOP VIEW
03149-001
ᅟᇀ๑ᆩ
֑ᆩবู੣क़‫ڦ‬MSOP‫ހ‬ጎ
ሺᅮཚࡗ1߲ྔև‫ۉ‬ፆยዃ(ሺᅮ‫ྷݔ‬ǖ1዁1000)
੻‫ۉ‬ᇸ‫ۉ‬უ‫ྷݔ‬ǖ±2.3 V዁±18 V
‫ۨܮ‬࿒‫ྷݔ܈‬ǖ
ā−40°C዁+85°C
߾ፕ࿒‫܈‬ፌߛ੗‫ٳ‬125°C1
‫؜‬෥‫ڦ‬঍ୁ༬Ⴀ
āCMRRǖ80 dB(ፌၭኵ,10 kHzLjG = 1)
ā−3 dB‫੻ټ‬ǖ825 kHz (G = 1)
āუӦ୲ǖ2 V/μs
‫گ‬ሯำ
ā๼෇‫ۉ‬უሯำǖ8 nV/√Hz (ፌ‫ٷ‬ኵLj1 kHz)
ā0.25 μV‫ރރ‬ኵ๼෇ሯำ(0.1 Hz዁10 Hz)
ߛ৛‫܈‬኱ୁႠీ(AD8221BR)
āCMRRǖ90 dB (ፌၭኵ,G = 1)
ā๼෇฿ۙ‫ۉ‬უǖ25 μV(ፌ‫ٷ‬ኵ)
ā๼෇฿ۙ೏ᅎǖ0.3 μV/°C(ፌ‫ٷ‬ኵ)
ā๼෇ೋዃ‫ୁۉ‬ǖ0.4 nA(ፌ‫ٷ‬ኵ)
཮1
120
110
AD8221
CMRR (dB)
100
90
COMPETITOR 1
80
70
60
COMPETITOR 2
50
40
‫ۉ‬ጱ‫׹‬
߾ᄽࡗ‫ײ‬੦዆
ൃ๕‫ٷݣ‬ഗ
৛௢ຕ਍֑णဣཥ
ᅅଐᅏഗ
ᆌՎऺ
‫ߌد‬ഗথ੨
߁ຎ
AD8221๟ᅃ੼ሺᅮ੗Պ‫ײ‬ĂߛႠీᅏ՗‫ٷݣ‬ഗLjሞᄽহ
ཞૌׂ೗ዐLjഄ၎‫ܔ‬ᇀೕ୲‫ࠌڦ‬ఇᅞ዆Բ(CMRR)ፌߛă
‫ৃړ‬๨‫ׇ‬ฉᅏ՗‫ٷݣ‬ഗ‫ڦ‬CMRRሞ200 Hzਸ๔ူইăᇑኮ၎
ԲLjሞG = 1้LjAD8221໯ᆶ‫ڪ‬पׂ೗‫ڦ‬ፌ‫گ‬CMRR਩ྺ80 dB
ժ੻዁10 kHză၎‫ܔ‬ᇀೕ୲‫ࠌߛڦ‬ఇᅞ዆Բ(CMRR)๑‫ڥ‬
AD8221੗ᅜᅞ዆੻‫߅ټ‬ඡࢅ၍ୟၿհLjܸٗ‫ٷٷ‬०ࣅ‫ܔ‬
୳հഗ‫ڦ‬ᄲ൱ă੗ీ‫ڦ‬ᆌᆩԈઔ৛௢ຕ਍֑णĂิ࿿ᅅბ
‫ݴ‬ဆࢅࡵ੣ࡵཀᅏഗă
10
100
1k
10k
FREQUENCY (Hz)
100k
03149-002
ᆌᆩ
཮2. ‫ۆ‬႙CMRRᇑೕ୲‫࠲ڦ‬ဣ(G = 1)
‫ۉگ‬უ฿ۙĂ‫گ‬฿ۙ೏ᅎĂ‫گ‬ሺᅮ೏ᅎĂߛሺᅮ৛‫ߛࢅ܈‬
ࠌఇᅞ዆Բ༬ႠLj๑ኄ੼ഗॲ‫ྺׯ‬ᄲ൱ਏԢፌॅ኱ୁႠీ
ᆌᆩ)සൃ๕႑ࡽۙ૙*‫ڦ‬ਨॅ჋ስă
੗Պ‫ײ‬ሺᅮྺᆩࢽ༵ࠃยऺଳऄႠăཚࡗ‫ڇ‬ᅃ‫ۉ‬ፆLj੗ሞ
1‫ڟ‬1000‫ాྷݔ‬ยዃሺᅮăAD8221੗ᅜ֑ᆩ‫ۉڇ‬ᇸईມ‫ۉ‬
ᇸࠃ‫ۉ‬Lj༬՚๢ࢇ๼෇‫ۉ‬უྺ±10 V‫ڦ‬ᆌᆩă
޿ഗॲ֑ᆩ‫ׯگ‬Ԩ‫ڦ‬8ᆅগSOICࢅMSOPଇዖ‫ހ‬ጎLj൐਩
ీ༵ࠃᄽহፌॅႠీăMSOPኻႴSOICᅃӷ‫ۉڦ‬ୟӱ੣
क़Ljᅺُ‫׉ݥ‬๢ࢇ‫ܠ‬ཚ‫ڢ‬ई੣क़๴၌‫ڦ‬ᆌᆩă
޿ഗॲ໯ᆶ‫ڪ‬प‫ۨܮڦ‬࿒‫ྷݔ܈‬਩ྺ−40°C዁+85°C߾ᄽ࿒
‫ྷݔ܈‬ăُྔLjAD8221ᄺీሞ−40°C዁+125°C1‫߾ాྷݔ‬
ፕă
1
൩֖੊ሞ96°C዁236°C‫߾ాྷݔ‬ፕ‫ۆڦ‬႙༬Ⴀ൸၍ă
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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Fax: 781.461.3113 ©2003–2007 Analog Devices, Inc. All rights reserved.
ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI
༵ࠃ‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă
AD8221
ణ!!!!୤
༬Ⴀ ............................................................................................ 1
āքਆ!...................................................................................... 17
ᆌᆩ!........................................................................................... 1
āएጚ‫܋‬ጱ!.............................................................................. 18
߁ຎ!........................................................................................... 1
ā‫ۉ‬ᇸۙኝᇑಖୟ!................................................................... 18
૶থ཮!........................................................................................ 1
ā๼෇ೋዃ‫࣮ୁۉ‬ୟ!............................................................... 18
Ⴊ۩૦๏!................................................................................... 2
ā๼෇ԍࢺ!.............................................................................. 18
रຍࡀ߭!................................................................................... 3
āพೕ)SG*߅ඡ!...................................................................... 19
ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ!........................................................................ 8
ā৛௢ᆌՎऺ!.......................................................................... 19
āඤ༬Ⴀ!................................................................................... 8
āኍ‫ܔ‬,6!Wֶ‫ݴ‬๼෇BED‫ڦ‬Ġ21!W๼෇႑ࡽۙ૙! ............ 19
ESDয়ߢ!................................................................................ 8
ā঍ୁ᳘ࢇᅏ՗‫ٷݣ‬ഗ!........................................................... 20
‫ۆ‬႙߾ፕ༬Ⴀ!............................................................................ 9
ྔႚ؅٫!.................................................................................. 21
߾ፕᇱ૙! ................................................................................. 16
ā۩ࠔኸళ!.............................................................................. 22
āሺᅮ჋ስ! ............................................................................. 17
Ⴊ۩૦๏
2007౎9ሆ—Ⴊ۩ӲA዁Ⴊ۩ӲB
Ⴊ߀“༬Ⴀ”և‫ ݴ‬......................................................................... 1
Ⴊ߀՗1քਆ .............................................................................. 3
Ⴊ߀՗2քਆ .............................................................................. 5
Ⴊ߀཮15 .................................................................................. 11
Ⴊ߀཮32 .................................................................................. 13
Ⴊ߀཮33Ă཮34ࢅ཮35 ........................................................... 14
߸ႎ“ྔႚ؅٫”և‫ ݴ‬............................................................... 21
Ⴊ߀“۩ࠔኸళ”և‫ ݴ‬............................................................... 22
2003౎11ሆ—Ⴊ۩Ӳ0዁Ⴊ۩ӲA
Ⴊ߀“༬Ⴀ”և‫ ݴ‬......................................................................... 1
Ⴊ߀“रຍࡀ߭”և‫ ݴ‬................................................................. 4
Ⴊ߀“߾ፕᇱ૙”և‫ ݴ‬............................................................... 13
Ⴊ߀“ሺᅮ჋ስ”և‫ ݴ‬............................................................... 14
2003౎10ሆ—Ⴊ۩Ӳ0ǖ‫؛‬๔Ӳ
Rev. B | Page 2 of 24
AD8221
रຍࡀ߭
VS = ±15 VLjVREF = 0 VLjTA = 25°CLjG = 1LjRL = 2 kΩLj༬՚ำ௽‫ྔأ‬ă
՗1
֖ຕ
ࠌఇᅞ዆Բ
ࠌఇᅞ዆ԲLjDC዁60 HzLj
1 kΩ‫ݥ‬਩࢚႑ࡽᇸ
G=1
G = 10
G = 100
G = 1000
ࠌఇᅞ዆ԲCMRR(10 kHz)
G=1
G = 10
G = 100
G = 1000
ሯำ
‫ۉ‬უሯำLj1 kHz
๼෇‫ۉ‬უሯำLjeNI
๼‫ۉ؜‬უሯำLjeNO
RTI
G=1
G = 10
G = 100዁1000
‫ୁۉ‬ሯำ
฿ۙ‫ۉ‬უ1
๼෇฿ۙLjVOSI
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼‫؜‬฿ۙLjVOSO
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
ችࢇ‫ڟ‬๼෇‫ڦ܋‬฿ۙᇑ‫ۉ‬ᇸ‫࠲ڦ‬ဣ(PSR)
G=1
G = 10
G = 100
G = 1000
๼෇‫ୁۉ‬
๼෇ೋዃ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼෇฿ۙ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
एጚ๼෇
RIN
IIN
‫ۉ‬უ‫ྷݔ‬
๼‫؜‬ሺᅮ
ཉॲ
ፌၭኵ
ARप
‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ
ፌၭኵ!
BRप
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
‫ڇ‬࿋
VCM = −10 V዁+10 V
80
100
120
130
90
110
130
140
dB
dB
dB
dB
80
90
100
100
80
100
110
110
dB
dB
dB
dB
VCM = −10 V዁+10 V
ችࢇ‫ڟ‬๼෇‫܋‬ሯำ
=√eNI2 + (eNO/G)2
8
75
VIN+, VIN−, VREF=0
8
75
nV/√Hz
nV/√Hz
f = 0.1 Hz዁10 Hz
2
0.5
0.25
40
6
f = 1 kHz
f = 0.1 Hz዁10 Hz
2
0.5
0.25
40
6
60
86
0.4
300
0.66
6
VS = ±5 V዁±15 V
T = −40°C዁+85°C
VS = ±5 V዁±15 V
T = −40°C዁+85°C
μV p-p
μV p-p
μV p-p
fA/√Hz
pA p-p
25
45
0.3
200
0.45
5
μV
μV
μV/°C
μV
mV
μV/°C
VS = ±2.3 V዁±18 V
90
110
124
130
110
120
130
140
0.5
T = −40°C዁+85°C
1
0.2
T = −40°C዁+85°C
VIN+, VIN−, VREF = 0
–VS
Rev. B | Page 3 of 24
94
114
130
140
1.5
2.0
110
130
140
150
0.2
1
0.1
0.6
0.8
1
1
20
50
20
50
60
+VS
1 ± 0.0001
–VS
dB
dB
dB
dB
0.4
1
0.4
0.6
60
+VS
1 ± 0.0001
nA
nA
pA/°C
nA
nA
pA/°C
kΩ
μA
V
V/V
AD8221
֖ຕ
‫ۉ‬ᇸ
߾ፕ‫ۉ‬უ‫ྷݔ‬
ৢༀ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
‫ۯ‬ༀၚᆌ
ၭ႑ࡽ-3 dB‫੻ټ‬
G=1
G = 10
G = 100
G = 1000
0.01%ॺ૬้क़
G = 1዁100
G = 1000
0.001%ॺ૬้क़
G = 1዁100
G = 1000
უӦ୲
ሺᅮ
ሺᅮ‫ྷݔ‬
ሺᅮဃֶ
G=1
G = 10
G = 100
G = 1000
ሺᅮ‫ݥ‬၍Ⴀ‫܈‬
G = 1 to 10
G = 100
G = 1000
G = 1 to 100
ሺᅮᇑ࿒‫࠲ڦ܈‬ဣ
G=1
G > 12
๼෇
๼෇ፆੇ
ֶ‫ݴ‬
ࠌఇ
3
๼෇߾ፕ‫ۉ‬უ‫ྷݔ‬
ඇ࿒‫ྷݔ܈‬
๼෇߾ፕ‫ۉ‬უ‫ྷݔ‬
ඇ࿒‫ྷݔ܈‬
๼‫؜‬
๼‫؜‬Ӧ‫ޗ‬
ඇ࿒‫ྷݔ܈‬
๼‫؜‬Ӧ‫ޗ‬
ඇ࿒‫ྷݔ܈‬
‫܌‬ୟ‫ୁۉ‬
ཉॲ
ፌၭኵ
VS = ±2.3 V዁±18 V
±2.3
ARप
‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ
0.9
1
T = −40°C዁+85°C
±18
1
1.2
ፌၭኵ!
BRप
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
±2.3
0.9
1
±18
1
1.2
‫ڇ‬࿋
V
mA
mA
825
562
100
14.7
825
562
100
14.7
kHz
kHz
kHz
kHz
10
80
10
80
μs
μs
13
110
2
2.5
13
110
2
2.5
μs
μs
V/μs
V/μs
10 Vօ৊
10 Vօ৊
G=1
1.5
G = 5዁100
2
G = 1 + (49.4 kΩ/RG)
1
VOUT ± 10 V
1.5
2
1000
1
0.03
0.3
0.3
0.3
VOUT =−10 V዁+10 V
RL = 10 kΩ
RL = 10 kΩ
RL = 10 kΩ
RL = 2 kΩ
V/V
0.02
0.15
0.15
0.15
%
%
%
%
3
5
10
10
10
15
40
95
3
5
10
10
10
15
40
95
ppm
ppm
ppm
ppm
3
10
–50
2
5
–50
ppm/°C
ppm/°C
100||2
100||2
VS = ±2.3 V዁±5 V
T = −40°C዁+85°C
VS = ±5 V዁±18 V
T =−40°C዁+85°C
RL = 10 kΩ
VS = ±2.3 V዁±5 V
T = −40°C዁+85°C
VS = ±5 V዁±18 V
T = –40°C዁+85°C
1000
100||2
100||2
–VS + 1.9
–VS + 2.0
–VS + 1.9
–VS + 2.0
+VS − 1.1
+VS − 1.2
+VS − 1.2
+VS − 1.2
–VS + 1.9
–VS + 2.0
–VS + 1.9
–VS + 2.0
+VS − 1.1
+VS − 1.2
+VS − 1.2
+VS − 1.2
–VS + 1.1
–VS + 1.4
–VS + 1.2
–VS + 1.6
+VS − 1.2
+Vs − 1.3
+VS − 1.4
+VS − 1.5
–VS + 1.1
–VS + 1.4
–VS + 1.2
–VS + 1.6
+VS − 1.2
+VS − 1.3
+VS − 1.4
+VS − 1.5
18
Rev. B | Page 4 of 24
18
GΩ||pF
GΩ||pF
V
V
V
V
V
V
V
V
mA
AD8221
֖ຕ
࿒‫ྷݔ܈‬
‫ۨܮ‬࿒‫܈‬
4
߾ፕ‫ྷݔ‬
ཉॲ
ፌၭኵ
ARप
‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ
–40
–40
+85
+125
ፌၭኵ!
BRप
‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ
–40
–40
+85
+125
‫ڇ‬࿋
°C
°C
1
ችࢇ‫ڟ‬๼෇‫(܋‬RTI)ጺ฿ۙ‫ۉ‬უVOS = (VOSI) + (VOSO/G)ă
փԈઔྔև‫ۉ‬ፆRG‫ڦ‬ᆖၚă
ᅃୟ๼෇থ‫ں‬ăG = 1ă
4
൩֖੊ሞ85°C዁125°C‫߾ాྷݔ‬ፕ‫ۆڦ‬႙߾ፕ༬Ⴀă
2
3
՗2
֖ຕ
ࠌఇᅞ዆Բ(CMRR)
ࠌఇᅞ዆ԲLjDC዁60 HzLj1 kΩ‫ݥ‬਩࢚႑ࡽᇸ
G=1
G = 10
G = 100
G = 1000
ࠌఇᅞ዆Բ(10 kHz)
G=1
G = 10
G = 100
G = 1000
ሯำ
‫ۉ‬უሯำLj1 kHz
๼෇‫ۉ‬უሯำLjeNI
๼‫ۉ؜‬უሯำLjeNO
RTI
G=1
G = 10
G = 100዁1000
‫ୁۉ‬ሯำ
฿ۙ‫ۉ‬უ1
๼෇฿ۙLjVOSI
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼‫؜‬฿ۙLjVOSO
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
ችࢇ‫ڟ‬๼෇‫ڦ܋‬฿ۙᇑ‫ۉ‬ᇸ‫࠲ڦ‬ဣ(PSR)
G=1
G = 10
G = 100
G = 1000
๼෇‫ୁۉ‬
๼෇ೋዃ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
๼෇฿ۙ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
ೝ਩࿒‫܈‬ဣຕ(TC)
ཉॲ
ፌၭኵ
ARMप
‫ۆ‬႙ኵ
ፌ‫ٷ‬ኵ
‫ڇ‬࿋
VCM = −10 V዁+10 V
80
100
120
130
dB
dB
dB
dB
80
90
100
100
dB
dB
dB
dB
VCM = –10 V዁+10 V
ችࢇ‫ڟ‬๼෇‫܋‬ሯำ =
√eNI2 + (eNO/G)2
8
75
VIN+, VIN−, VREF= 0
nV/√Hz
nV/√Hz
f = 0.1 Hz዁10 Hz
2
0.5
0.25
40
6
f = 1 kHz
f = 0.1 Hz዁10 Hz
μV p-p
μV p-p
μV p-p
fA/√Hz
pA p-p
70
135
0.9
600
1.00
9
VS = ±5 V዁±15 V
T = −40°C዁+85°C
VS = ±5 V዁±15 V
T = −40°C዁+85°C
μV
μV
μV/°C
μV
mV
μV/°C
VS = ±2.3 V዁±18 V
90
100
120
120
100
120
140
140
0.5
T = −40°C዁+85°C
3
0.3
T = −40°C዁+85°C
3
Rev. B | Page 5 of 24
dB
dB
dB
dB
2
3
1
1.5
nA
nA
pA/°C
nA
nA
pA/°C
AD8221
֖ຕ
एጚ๼෇
RIN
IIN
‫ۉ‬უ‫ྷݔ‬
๼‫؜‬ሺᅮ
‫ۉ‬ᇸ
߾ፕ‫ۉ‬უ‫ྷݔ‬
ৢༀ‫ୁۉ‬
ඇ࿒‫ྷݔ܈‬
‫ۯ‬ༀၚᆌ
ၭ႑ࡽ-3 dB‫੻ټ‬
G=1
G = 10
G = 100
G = 1000
0.01%ॺ૬้क़
G = 1዁100
G = 1000
0.001%ॺ૬้क़
G = 1዁100
G = 1000
უӦ୲
ሺᅮ
ሺᅮ‫ྷݔ‬
ሺᅮဃֶ
G=1
G = 10
G = 100
G = 1000
ሺᅮ‫ݥ‬၍Ⴀ‫܈‬
G = 1዁10
G = 100
G = 1000
G = 1዁100
ሺᅮᇑ࿒‫࠲ڦ܈‬ဣ
G=1
G > 12
๼෇
๼෇ፆੇ
ֶ‫ݴ‬
ࠌఇ
3
๼෇߾ፕ‫ۉ‬უ‫ྷݔ‬
ඇ࿒‫ྷݔ܈‬
๼෇߾ፕ‫ۉ‬უ‫ྷݔ‬
ඇ࿒‫ྷݔ܈‬
๼‫؜‬
๼‫؜‬Ӧ‫ޗ‬
ඇ࿒‫ྷݔ܈‬
๼‫؜‬Ӧ‫ޗ‬
ඇ࿒‫ྷݔ܈‬
‫܌‬ୟ‫ୁۉ‬
ཉॲ
ፌၭኵ
ARMप
‫ۆ‬႙ኵ
20
50
VIN+, VIN−, VREF = 0
−VS
ፌ‫ٷ‬ኵ
‫ڇ‬࿋
60
+VS
kΩ
μA
V
V/V
±18
1
1.2
V
mA
mA
1 ± 0.0001
VS = ±2.3 V዁±18 V
±2.3
0.9
1
T = −40°C዁+85°C
825
562
100
14.7
kHz
kHz
kHz
kHz
10
80
μs
μs
13
110
2
2.5
μs
μs
V/μs
V/μs
10 Vօ৊
10 Vօ৊
G=1
G = 5዁100
G = 1 + (49.4 kΩ/RG)
1.5
2
1
1000
V/V
0.1
0.3
0.3
0.3
%
%
%
%
5
7
10
15
15
20
50
100
ppm
ppm
ppm
ppm
3
10
–50
ppm/°C
ppm/°C
VOUT ± 10 V
VOUT = −10 V዁+10 V
R L= 10 kΩ
R L= 10 kΩ
R L= 10 kΩ
R L= 2 kΩ
100||2
100||2
VS = ±2.3 V዁±5 V
T = −40°C዁+85°C
VS = ±5 V዁±18 V
T = −40°C዁+85°C
R L= 10 kΩ
VS = ±2.3 V዁±5 V
T = −40°C዁+85°C
VS = ±5 V዁±18 V
T = −40°C዁+85°C
–VS + 1.9
–VS + 2.0
–VS + 1.9
–VS + 2.0
+VS − 1.1
+VS − 1.2
+VS − 1.2
+VS − 1.2
–VS + 1.1
–VS + 1.4
–VS + 1.2
–VS + 1.6
+VS − 1.2
+VS − 1.3
+VS − 1.4
+VS − 1.5
18
Rev. B | Page 6 of 24
GΩ/pF
GΩ/pF
V
V
V
V
V
V
V
V
mA
AD8221
֖ຕ
࿒‫ྷݔ܈‬
‫ۨܮ‬࿒‫܈‬
4
߾ፕ‫ྷݔ‬
ཉॲ
ፌၭኵ
−40
−40
1
ችࢇ‫ڟ‬๼෇‫(܋‬RTI)ጺ฿ۙ‫ۉ‬უVOS = (VOSI) + (VOSO/G)ă
փԈઔྔև‫ۉ‬ፆRG‫ڦ‬ᆖၚă
3 ᅃୟ๼෇থ‫ں‬ăG = 1ă
4 ൩֖੊ሞ85°C዁125°C‫߾ాྷݔ‬ፕ‫ۆڦ‬႙߾ፕ༬Ⴀă
2
Rev. B | Page 7 of 24
ARMप
‫ۆ‬႙ኵ
ፌ‫ٷ‬ኵ
‫ڇ‬࿋
+85
+125
°C
°C
AD8221
ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ
՗3
֖ຕ
‫ۉ‬ᇸ‫ۉ‬უ
ాևࠀࡼ
๼‫܌؜‬ୟ‫ୁۉ‬
๼෇‫ۉ‬უ(ࠌఇ)
ֶ‫ݴ‬๼෇‫ۉ‬უ
٪‫ئ‬࿒‫ྷݔ܈‬
1
߾ፕ࿒‫ྷݔ܈‬
1
ጀᅪLj‫؜ג‬ᅜฉ໯ଚ‫ڦ‬ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీ‫ڞ‬ዂഗॲᆦ৳
Ⴀ໦࣋ăኄኻ๟ഽۙ‫ۨܮڦ‬ኵLjփภतഗॲሞኄၵईඪࢆ
ഄ໲ཉॲူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă‫׊‬೺ሞਨ
‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă
‫ۨܮ‬ኵ
±18 V
200 mW
࿄ۨ
±VS
±VS
−65°C዁+150°C
−40°C዁+125°C
ඤ༬Ⴀ
ኍ‫ܔ‬੣ഘዐ‫ڦ‬ഗॲܸჾă
‫ۨܮ‬࿒‫ྺྷݔ܈‬-40°C዁+85°Că൩֖੊ሞ85°C዁125°C‫߾ాྷݔ‬ፕ‫ۆڦ‬
႙߾ፕ༬Ⴀă
՗4
‫ހ‬ጎ
8ᆅগSOICLj4֫JEDEC‫ۉ‬ୟӱ
8ᆅগMSOPLj4֫JEDEC‫ۉ‬ୟӱ
θJA
121
135
‫ڇ‬࿋
°C/W
°C/W
ESDয়ߢ
ESD)ৢ‫ߌ௺*ۉݣۉ‬ᇮॲă؊‫ۉ‬ഗॲࢅ‫ۉ‬ୟӱሞுᆶ
ִਥ‫ڦ‬൧઄ူ੗ీ‫ۉݣ‬ă৑࠶ኄၵׂ೗ਏᆶጆ૧‫ڦ‬ई
ጆᆩ‫ڦ‬ԍࢺ‫ۉ‬ୟLjሞᇜ‫ీߛڟ‬ଉESD้੗ీ݀ิഗॲ
‫ڦ‬໦࣋ăᅺُLj๢‫ڦړ‬ESDᇨয়੗Ն௨ഗॲႠీ‫ڦ‬३
ཽईࠀీෟ฿ă
Rev. B | Page 8 of 24
AD8221
‫ۆ‬႙߾ፕ༬Ⴀ
T = 25°CLjVS = ±15 VLjRL = 10 kΩă༬՚ำ௽‫ྔأ‬ă
1600
3500
1400
3000
1200
2500
2000
UNITS
UNITS
1000
800
1500
600
1000
400
–100
–50
0
50
100
150
CMR (μV/V)
0
–0.9
03149-003
0.6
0.9
1500
1200
900
600
–40
–20
0
20
40
60
INPUT OFFSET VOLTAGE (μV)
VS = ±15V
5
0
VS = ±5V
–5
–10
–15
–15
03149-004
300
10
–10
–5
0
5
10
15
OUTPUT VOLTAGE (V)
཮4. ๼෇฿ۙ‫ۉ‬უ‫ۆڦ‬႙‫ݴ‬ք཮
03149-007
INPUT COMMON-MODE VOLTAGE (V)
1800
UNITS
0.3
15
2100
཮7. ๼෇ࠌఇ‫ۉ‬უ‫ྷݔ‬ᇑ๼‫ۉ؜‬უ‫࠲ڦ‬ဣ(G = 1)
15
INPUT COMMON-MODE VOLTAGE (V)
3000
2500
2000
1500
1000
500
–1.0
–0.5
0
0.5
1.0
INPUT BIAS CURRENT (nA)
1.5
10
VS = ±15V
5
0
VS = ±5V
–5
–10
–15
–15
03149-005
UNITS
0
཮6. ๼෇฿ۙ‫ۆڦୁۉ‬႙‫ݴ‬ք཮
2400
0
–1.5
–0.3
INPUT OFFSET CURRENT (nA)
཮3. CMR‫ۆ‬႙‫ݴ‬ք཮(G = 1)
0
–60
–0.6
–10
–5
0
5
10
15
OUTPUT VOLTAGE (V)
཮5. ๼෇ೋዃ‫ۆڦୁۉ‬႙‫ݴ‬ք཮
཮8. ๼෇ࠌఇ‫ۉྷݔ‬უᇑ๼‫ۉ؜‬უ‫࠲ڦ‬ဣDŽG = 100Dž
Rev. B | Page 9 of 24
03149-008
0
–150
03149-006
500
200
AD8221
0.80
180
0.75
160
0.70
140
0.60
VS = ±5V
0.55
120
GAIN = 10
100
GAIN = 1
60
0.45
40
–10
–5
0
5
10
15
COMMON-MODE VOLTAGE (V)
20
0.1
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
཮9. IBIAS ᇑCMV‫࠲ڦ‬ဣ
཮12. ኟPSRRᇑೕ୲‫࠲ڦ‬ဣLjRTI (G = 1዁1000)
2.00
180
1.75
160
1.50
140
1.25
1.00
0.75
GAIN = 100
120
GAIN = 10
100
GAIN = 1
80
0.50
60
0.25
40
0
0.01
0.1
1
10
WARM-UP TIME (min)
20
0.1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
཮10. ๼෇฿ۙ‫ۉ‬უՎࣅᇑᇨԢ้क़‫࠲ڦ‬ဣ
5
1
03149-013
NEGATIVE PSRR (dB)
GAIN = 1000
03149-010
CHANGE IN INPUT OFFSET VOLTAGE (μV)
GAIN = 1000
80
0.50
0.40
–15
GAIN = 100
03149-012
POSITIVE PSRR (dB)
VS = ±15V
0.65
03149-009
INPUT BIAS CURRENT (nA)
GAIN = 1000
཮13. ޶PSRRᇑೕ୲‫࠲ڦ‬ဣLjRTI (G = 1዁1000)
100k
VS = ±15V
TOTAL DRIFT 25°C – 85°C RTI (μV)
4
2
1
INPUT BIAS CURRENT
–1
–2
–3
10k
BEST AVAILABLE FET
INPUT IN-AMP GAIN = 1
1k
BEST AVAILABLE FET
INPUT IN-AMP GAIN = 1000
AD8221 GAIN = 1
100
–4
–5
–40
AD8221 GAIN = 1000
–20
0
20
40
60
80
100
120
TEMPERATURE (°C)
140
཮11. ๼෇ೋዃ‫ࢅୁۉ‬฿ۙ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ
10
10
100
1k
10k
100k
1M
SOURCE RESISTANCE (Ω)
཮14. ጺ೏ᅎᇑ႑ࡽᇸ‫ۉ‬ፆ‫࠲ڦ‬ဣ
Rev. B | Page 10 of 24
10M
03149-014
0
INPUT OFFSET CURRENT
03149-011
INPUT CURRENT (nA)
3
AD8221
70
100
GAIN = 1000
80
60
60
50
GAIN = 100
40
CMR (μV/V)
40
GAIN = 10
20
10
GAIN = 1
0
20
0
–20
–40
–60
–10
–80
–20
1k
10k
100k
1M
10M
FREQUENCY (Hz)
–100
–40
03149-015
–30
100
–20
CMRR (dB)
120
40
60
80
100
120
140
཮18. CMRᇑ࿒‫࠲ڦ܈‬ဣ
+VS
GAIN = 1000
–0
–0.4
INPUT VOLTAGE LIMIT (V)
REFERRED TO SUPPLY VOLTAGES
140
20
TEMPERATURE (°C)
཮15. ሺᅮᇑೕ୲‫࠲ڦ‬ဣ
160
0
03149-018
GAIN (dB)
30
GAIN = 100
GAIN = 10
100
GAIN = 1
80
60
–0.8
–1.2
–1.6
–2.0
–2.4
+2.4
+2.0
+1.6
+1.2
+0.8
100
1k
10k
100k
1M
FREQUENCY (Hz)
+0
0
+VS
GAIN = 1000
OUTPUT VOLTAGE SWING (V)
REFERRED TO SUPPLY VOLTAGES
GAIN = 1
80
60
–0
RL = 10kΩ
–0.8
–1.2
RL = 2kΩ
–1.6
–2.0
+2.0
+1.6
RL = 2kΩ
+1.2
+0.8
RL = 10kΩ
+0.4
40
0.1
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
03149-017
CMRR (dB)
100
20
–0.4
GAIN = 100
GAIN = 10
15
཮19. ๼෇‫ۉ‬უ၌዆ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣDŽG = 1Dž
160
120
10
SUPPLY VOLTAGE (±V)
཮16. CMRRᇑೕ୲‫࠲ڦ‬ဣ(RTI)
140
5
03149-019
10
–VS
–VS
཮17. CMRRᇑೕ୲‫࠲ڦ‬ဣ(RTILj1 kΩ‫ݥ‬਩࢚႑ࡽᇸ)
+0
0
5
10
15
SUPPLY VOLTAGE (±V)
཮20. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣDŽG = 1Dž
Rev. B | Page 11 of 24
20
03149-020
1
03149-016
+0.4
40
0.1
AD8221
30
VS = ±15V
10
0
1
10
100
1k
10k
LOAD RESISTANCE (Ω)
–10
–8
–6
–4
–2
0
2
4
OUTPUT VOLTAGE (V)
6
8
10
03149-024
ERROR (10ppm/DIV)
20
03149-021
OUTPUT VOLTAGE SWING (V p-p)
VS = ±15V
཮24. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 100LjRL = 10 kΩ)
཮21. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ޶ሜ‫ۉ‬ፆ‫࠲ڦ‬ဣ
+VS –0
VS = ±15V
OUTPUT VOLTAGE SWING (V)
REFERRED TO SUPPLY VOLTAGES
–1
SOURCING
ERROR (100ppm/DIV)
–2
–3
+3
+2
SINKING
0
1
2
3
4
5
6
7
8
9
10
11
12
OUTPUT CURRENT (mA)
–10
03149-022
–VS +0
–8
–6
–4
–2
0
2
4
OUTPUT VOLTAGE (V)
6
8
10
03149-025
+1
཮25. ሺᅮ‫ݥ‬၍Ⴀ‫)܈‬G = 1000LjRL = 10 kΩ*
཮22. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ๼‫࠲ڦୁۉ؜‬ဣ)G = 1*
1k
ERROR (1ppm/DIV)
VOLTAGE NOISE RTI (nV/ Hz)
VS = ±15V
GAIN = 1
100
GAIN = 10
GAIN = 100
10
GAIN = 1000
–8
–6
–4
–2
0
2
4
OUTPUT VOLTAGE (V)
6
8
10
1
03149-023
–10
1
10
100
1k
10k
100k
FREQUENCY (Hz)
཮26. ‫ۉ‬უሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ(G = 1዁1000)
཮23. ሺᅮ‫ݥ‬၍Ⴀ‫)܈‬G = 1LjRL = 10 kΩ*
Rev. B | Page 12 of 24
03149-026
GAIN = 1000
BW LIMIT
1s/DIV
03149-027
2μV/DIV
5pA/DIV
཮27. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ(G = 1)
1s/DIV
03149-030
AD8221
཮30. 0.1 Hz዁10 Hz‫ୁۉ‬ሯำ
30
VS = ±15V
OUTPUT VOLTAGE (V p-p)
25
20
GAIN = 1
GAIN = 10, 100, 1000
15
10
1s/DIV
0
1k
10k
100k
1M
FREQUENCY (Hz)
཮28. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ(G = 1000)
03149-031
0.1μV/DIV
03149-028
5
཮31. ‫ٷ‬႑ࡽೕ୲ၚᆌ
5V/DIV
100
10
1
10
100
1k
FREQUENCY (Hz)
཮29. ‫ୁۉ‬ሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ
10k
7.9μs TO 0.01%
8.5μs TO 0.001%
20μs/DIV
03149-032
0.002%/DIV
03149-029
CURRENT NOISE (fA/ Hz)
1k
཮32. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1Lj0.002%/ਗ਼‫)܈‬
Rev. B | Page 13 of 24
AD8221
5V/DIV
0.002%/DIV
4.9μs TO 0.01%
5.6μs TO 0.001%
཮33. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 10Lj0.002%/ਗ਼‫)܈‬
4μs/DIV
03149-036
20μs/DIV
03149-033
20mV/DIV
཮36. ၭ႑ࡽၚᆌ(G = 1LjRL = 2 kΩLjCL = 100 pF)
5V/DIV
0.002%/DIV
10.3μs TO 0.01%
13.4μs TO 0.001%
4μs/DIV
཮34. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 100Lj0.002%/ਗ਼‫)܈‬
03149-037
20μs/DIV
03149-034
20mV/DIV
཮37. ၭ႑ࡽၚᆌ(G = 10LjRL = 2 kΩLjCL = 100 pF)
5V/DIV
0.002%/DIV
83μs TO 0.01%
112μs TO 0.001%
10μs/DIV
཮35. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1000Lj0.002%/ਗ਼‫)܈‬
Rev. B | Page 14 of 24
཮38. ၭ႑ࡽၚᆌ(G = 100LjRL = 2 kΩLjCL = 100 pF)
03149-038
200μs/DIV
03149-035
20mV/DIV
AD8221
SETTLING TIME (μs)
1000
2
100
SETTLED TO 0.001%
10
03149-039
100μs/DIV
1
SETTLED TO 0.001%
SETTLED TO 0.01%
5
5
10
15
20
03149-040
SETTLING TIME (μs)
10
OUTPUT VOLTAGE STEP SIZE (V)
100
1000
཮41. ॺ૬้क़ᇑሺᅮ‫࠲ڦ‬ဣ(օ৊‫ٷ‬ၭྺ10 V)
15
0
10
GAIN
཮39. ၭ႑ࡽၚᆌ(G = 1000LjRL = 2 kΩLjCL = 100 pF)
0
1
཮40. ॺ૬้क़ᇑօ৊‫ٷ‬ၭ‫࠲ڦ‬ဣ(G = 1)
Rev. B | Page 15 of 24
03149-041
SETTLED TO 0.01%
20mV/DIV
AD8221
߾ፕᇱ૙
VB
I
A1
IB COMPENSATION
I
A2
C1
IB COMPENSATION
10k Ω
C2
+VS
10k Ω
OUTPUT
A3
10k Ω
+VS
–IN
400Ω
Q1
R1 24.7kΩ
+VS
R2
+VS
+VS
24.7k Ω
400Ω
Q2
+VS
+IN
–VS
REF
10kΩ
RG
–VS
03149-042
–VS
–VS
–VS
–VS
཮42. ᇱ૙๖ᅪ཮
AD8221֑ᆩSuperbeta๼෇ৗ༹࠶ࢅIBց‫ݛ׋‬ӄLj໯ᅜਏᆶ
टߛ‫ڦ‬๼෇ፆੇĂ‫گ‬IBĂ‫گ‬IB೏ᅎĂ‫گ‬IOSĂ‫گ‬๼෇ೋዃ‫ۉ‬
ୁሯำࢅट‫ۉڦگ‬უሯำ(8 nV/√Hz)༬Ⴀă
ᆯᇀ๼෇‫ٷݣ‬ഗ֑ᆩ‫ݒୁۉ‬ઍ঳ࠓLjᅺُAD8221‫ڦ‬ሺᅮ‫ױ੻ټ‬ओࣷໜሺᅮ༵ߛܸሺेLj๑ဣཥփ๴ডߛሺᅮ้‫ۉ‬
უ‫ݒ‬ઍ঳ࠓ٪ሞ‫੻ټ‬໦฿‫ڦ‬ᆖၚă
ྺକሞ๼෇‫ۉ‬ೝড‫้گ‬ධీྼ‫ߛ׼‬৛‫܈‬Lj‫ܔ‬AD8221৊ႜ
କ৛႐ยऺࢅքਆLj๑ഄႠీ੗஢ፁፌჹ߭‫ڦ‬ᆌᆩᄲ൱ă
‫܀‬༬‫ڦ‬ᆅগಇଚ๑AD8221ሞ10 kHz (G = 1)้‫ڦ‬CMRR‫ڟٳ‬
80 dBLjሞ1 kHz (G = 1000)้‫ڦ‬CMMR‫ڟٳ‬110 dBăස཮43
໯๖‫ڦ‬ೝ࢚ᆅগಇଚLj੗३ၭࡗඁࣷ๑CMRRႠీܱࣅ‫ڦ‬
सิၳᆌăُྔLjኄዖႎ๕ᆅগಇଚॽ၎࠲ጽ၍ፇኯሞᅃ
ഐLj०ࣅକ‫ۉ‬ୟӱքਆă૩සLjሺᅮยዃ‫ۉ‬ፆᆅগᇑ๼෇
၎ତLjएጚᆅগሶ৆Ұጣ๼‫؜‬ă
AD8221‫ࡧڿدڦ‬ຕྺǖ
G = 1+
49.4 kΩ
RG
–IN 1
8
+VS
RG 2
7
VOUT
RG 3
6
REF
+IN 4
5
–VS
AD8221
TOP VIEW
཮43. ᆅগಇଚ཮
ᆩࢽ੗ᅜཚࡗᅃ߲Քጚ‫ۉ‬ፆൟ຿ܸ৛ඓ‫ں‬ยዃሺᅮă
Rev. B | Page 16 of 24
03149-043
AD8221๟ᅃ੼‫ڇ‬ႊೌᅏ՗‫ٷݣ‬ഗLj֑ᆩঢ়‫ڦۆ‬ෙሏ‫ݣ‬ྊ
೫঳ࠓยऺă๼෇ৗ༹࠶Q1ࢅQ2ᅜࠦۨ‫ୁۉ‬ೋዃLjᅺُ
ඪࢆֶ‫ݴ‬๼෇႑ࡽ‫ࣷۼ‬๑A1ࢅA2‫ڦ‬๼‫ۉ؜‬უ݀ิ၎ᆌՎ
ࣅă๼෇႑ࡽׂิ‫ୁۉ‬ཚࡗRGĂR1ࢅR2Lj๑‫ڥ‬A1ࢅA2‫ڦ‬
๼‫؜‬ኟඓ‫ۉڦ‬უăٗྊ೫ᅪᅭฉຫLjQ1ĂA1ĂR1ᇑQ2Ă
A2ĂR2਩੗๫ྺ৛௢‫ݒୁۉ‬ઍ‫ٷݣ‬ഗăঢ়ࡗ‫ݴֶڦٷݣ‬
ࢅࠌఇ႑ࡽፕᆩᇀֶ‫ٷݣۯ‬ഗLjࢫኁᅞ዆ࠌఇ‫ۉ‬უLj‫ݣڍ‬
‫ۉݴֶٷ‬უă޿ֶ‫ٷݣۯ‬ഗ֑ᆩ‫ظ‬ႎरຍLj੗ํ၄‫گ‬๼‫؜‬
฿ۙ‫ۉ‬უत‫گ‬๼‫؜‬฿ۙ‫ۉ‬უ೏ᅎăघ࠼ۙኝ‫ۉ‬ፆ๑ኄ੼ᅏ՗
‫ٷݣ‬ഗਏᆶ࢔ߛ‫ڦ‬৛‫܈‬Lj‫ۆ‬႙ሺᅮဃֶၭᇀ20 ppmLjCMRR
‫ࡗג‬90 dB (G = 1)ă
AD8221
ሺᅮ჋ስ!
থ‫ں‬
ॽᅃ߲‫ۉ‬ፆੵথሞRGᆅগฉLjन੗ยዃAD8221‫ڦ‬ሺᅮLj
‫ۉ‬ፆኵऺ໙੗֖੊՗5ई૧ᆩሺᅮࠅ๕ă
AD8221‫ڦ‬๼‫ۉ؜‬უ๟၎‫ܔ‬ᇀएጚᆅগฉ‫ۉڦ‬࿋ܸჾ‫ڦ‬Ljᆌ
ጀᅪॽREF૶዁၎ᆌ‫ڦ‬ਆևথ‫ں‬ă
RG =
49.4 kΩ
G −1
՗ 5. ᆩ1%‫ۉ‬ፆํ၄‫ڦ‬ሺᅮ
1%Քጚ՗RGኵ(Ω)
49.9 k
12.4 k
5.49 k
2.61 k
1.00 k
499
249
100
49.9
ऺ໙‫ڦڟڥ‬ሺᅮኵ
1.990
4.984
9.998
19.93
50.40
100.0
199.4
495.0
991.0
ሞंࢇ႑ࡽ࣍ৣዐLj‫ۉگ‬ೝఇె႑ࡽႴᄲٗߛሯำຕጴ࣍
ৣዐ߰૗‫؜‬ઠăႹ‫ܠ‬ADC‫ۼ‬ਏᆶ‫ڦ܀ڇ‬ఇెথ‫ں‬ᆅগࢅຕ
ጴথ‫ں‬ᆅগă໚඗ॽኄଇዖথ‫૶ں‬዁‫ڇ‬ᅃথ‫ݛ࢔ࣷ֫ں‬
ՍLj‫ڍ‬๟ୁঢ়থ‫ں‬၍ࢅPCӱ‫ୁۉڦ‬੗ీࣷᆅഐຕӥࡹ‫ڦޚ‬
ဃֶăᅺُᆌ֑ᆩ‫ݴ‬ਸ‫ڦ‬ఇెࢅຕጴথ‫࣮ں‬ୟLj๑‫௺ٗڥ‬
ߌ‫ୁۅ‬዁ဣཥথ‫ୁۉڦں‬ፌၭă཮44ࢅ཮45๟ଆࡻք၍๖
૩ă
փᆩሺᅮ‫ۉ‬ፆ้LjAD8221ఐණยዃG = 1ăሺᅮ৛‫܈‬ൽਦᇀ
RG‫ڦ‬ਨ‫ֶࠅܔ‬ăྔևሺᅮ‫ۉ‬ፆ‫ڦ‬࿒‫܈‬ဣຕ(TC)ࣷሺ‫ٷ‬ᅏ՗
‫ٷݣ‬ഗ‫ڦ‬ሺᅮ೏ᅎăփᆩሺᅮ‫ۉ‬ፆ้Ljሺᅮဃֶࢅሺᅮ೏
ᅎԍ‫׼‬ፌၭă
৛႐ࡀࣄ‫ۉڦ‬ୟӱքਆ੗ᅜඟဣཥํ၄ፌߛႠీăٗሺᅮ
ยዃ‫ۉ‬ፆ‫ڟ‬RGᆅগ‫ڦ‬ጽ၍ᆌ৑੗ీ‫܌‬Ljᅜ๑सิ‫ߌۉ‬ፌ
ၭăྺକඓԍइ‫ڥ‬ፌ৛ඓ‫ڦ‬๼‫؜‬LjٗREFᆅগᆅ‫ڦ؜‬ጽ၍
ᆌ૶থ዁AD8221‫ڦ‬ਆևথ‫ں‬Ljස཮46໯๖Ljईኁ૶থ዁
AD8221ਆևথ‫ڦں‬एጚ‫ۉ‬უă
03149-044
քਆ
཮44. AD8221-EVAL‫֫ۥ‬
ࠌఇᅞ዆
AD8221၎‫ܔ‬ᇀೕ୲ਏᆶߛࠌఇᅞ዆Բ(CMRR)Ljኄᅃᆫ๞
༹၄ሞഄੇ߅ඡ(ස၍ୟሯำतഄၿհ)ႠీԲ‫ۆ‬႙‫ڦ‬ᅏ՗
‫ٷݣ‬ഗ߸ࡻăཚ‫׉‬ઠຫLjᅏ՗‫ٷݣ‬ഗ‫ڦ‬CMRRࣷٗ200 Hz
ਸ๔ူইLjᅃӯ੗ᆩࠌఇ୳հഗઠ௜ցኄᅃඍ။ăAD8221
ీࠕሞ߸‫ٷ‬ೕ୲‫ాྷݔ‬ᅞ዆CMRRLjᅺܸই‫گ‬କ‫୳ܔ‬հ‫ڦ‬
Ⴔ൱ă
03149-045
ଆࡻ‫ڦ‬ք၍ᆶዺᇀԍ‫׼‬AD8221၎‫ܔ‬ᇀೕ୲‫ࠌߛڦ‬ఇᅞ዆
Բă๼෇ᇸፆੇࢅ‫ۉ‬ඹᆌ‫ړ‬ჹ߭೅ದăُྔLj႑ࡽᇸ‫ۉ‬ፆ
ࢅ‫ۉ‬ඹᆌሞሎႹ‫ాྷݔڦ‬৑੗ీ੍ৎ๼෇ă
཮45. AD8221-EVAL‫֫ڹ‬
Rev. B | Page 17 of 24
AD8221
+VS
एጚᆅগ
ස཮42໯๖LjएጚᆅগREF࿋ᇀᅃ߲10 kΩ‫ۉ‬ፆ‫ڦ‬ᅃ‫܋‬ăᅏ
՗‫ٷݣ‬ഗ‫ڦ‬๼‫؜‬ᅜREFᆅগฉ‫ۉڦ‬უྺएጚLjኄሞ๼‫؜‬႑
ࡽႴᄲೋᅎ‫ڟ‬৛ඓ‫ڦ‬ዐक़‫ۉ‬ᇸ‫ۉ‬ೝ้ࣷ࢔ᆶᆩă૩සLj੗
ᅜॽᅃ߲‫ۉ‬უᇸᇑREFᆅগ၎૶Lj‫ܔ‬๼‫؜‬৊ႜ‫ۉ‬ೝገ࣑Lj
๑AD8221੗ᅜᇑADCํ၄থ੨ăඹႹ‫ڦ‬एጚ‫ۉ‬უ‫ྷݔ‬ᇑ
ሺᅮĂ๼෇ࢅ‫ۉ‬ᇸ‫ۉ‬უ‫ࡧװ‬ຕ࠲ဣăREFᆅগփᆌߛ‫؜‬+VS
ई–VS 0.5 Vᅜฉă
AD8221
REF
–VS
TRANSFORMER
ྺକइ‫ڥ‬ፌॅႠీLjREFᆅগᆌԍ‫׼‬ড‫ڦگ‬ᇸፆੇLjᅺྺ
सิ‫ۉ‬ፆࣷ๑CMRRࢅሺᅮ৛‫ࣅܱ܈‬ă
+VS
‫ۉ‬ᇸۙኝᇑಖୟ
AD8221
ኄ੼ᅏ՗‫ٷݣ‬ഗᆌ‫֑ړ‬ᆩ࿘ۨ‫ڦ‬኱ୁ‫ۉ‬უࠃ‫ۉ‬ă‫ۉ‬ᇸᆅগ
ฉ‫ڦ‬ሯำࣷ๑ഗॲႠీܱࣅăᆌ‫ړ‬ᆩಖୟ‫ۉ‬ඹઠඁ᳘ă
REF
੍ৎ߳‫ۉ‬ᇸᆅগ‫ت‬ᆌ‫ړ‬ದዃᅃ߲0.1 μF‫ۉ‬ඹăස཮46໯๖Lj
૗޿ഗॲডᇺ‫ڦ‬࿋ዃ੗ᅜᆩᅃ߲10 μF᮳‫ۉ‬ඹă‫ܠٷ‬ຕ൧઄
ူLjഄ໲৛௢ण‫ۉׯ‬ୟ੗ᅜࠌၛ޿᮳‫ۉ‬ඹă
–VS
THERMOCOUPLE
+VS
+VS
C
0.1μF
R
fHIGH-PASS = 2π1RC
10μF
AD8221
C
REF
+IN
–VS
LOAD
CAPACITOR COUPLED
REF
–IN
03149-047
R
VOUT
AD8221
཮47. ‫ॺظ‬ᅃཉIBIAS ‫࣮ݓ‬ୟ০
–VS
10μF
03149-046
๼෇ԍࢺ
0.1μF
཮46. ‫ۉ‬ᇸඁ᳘ĂREFत๼‫؜‬ᅜਆևথ‫ྺں‬एጚ
๼෇ೋዃ‫࣮ୁۉ‬ୟ
AD8221‫ڦ‬๼෇ೋዃ‫ୁۉ‬ՂႷᆶᅃ߲ࠅࠌ‫࣮ݓڦ܋‬ୟ০ă‫ړ‬
ඤ‫ۉ‬౾‫ڪ‬႑ࡽᇸ࿮݆༵ࠃ‫࣮ୁۉ‬ୟ้LjՂႷ‫ॺظ‬ᅃཉ‫࣮ݓ‬
ୟ০Ljස཮47໯๖ă
AD8221‫ڦ‬໯ᆶᆅগ਩༵ࠃ1 kVට༹ఇ႙ESDԍࢺăُྔLj
๼෇঳ࠓ੊୯କ޶‫ۉ‬ᇸ−VSᅜူ‫ڦ‬኱ୁࡗሜ൧઄Ǘ‫ิ݀ړ‬
޶‫ۉ‬ᇸࠤቱ้Ljాև400 Ω‫ۉ‬ፆ੗ᅜ၌዆‫ୁۉ‬ăփࡗLj‫ܔ‬ᇀ
ኟ‫ۉ‬ᇸ+VSᅜฉ‫ڦ‬኱ୁࡗሜ‫ۉ‬უLj‫ॽୁۉٷ‬኱থཚࡗESDܾ
ट࠶ୁ዁ኟࡆăᅺُLj‫ܔ‬ᇀ+VSᅜฉ‫ۉڦ‬უLjᆌ‫ړ‬ᆩᅃ߲
ᇑ๼෇‫ྔڦ૴ز‬և‫ۉ‬ፆઠ၌዆‫ୁۉ‬ă࿮ஃ๟నᅃዖ൧઄Lj
AD8221਩ీҾඇ‫تں‬૙‫׼‬Ⴤ‫ڦ‬6 mA‫ୁۉ‬ǖ‫ܔ‬ᇀኟࡗუ൧
઄LjI = VIN/REXTǗ‫ܔ‬ᇀ޶ࡗუ൧઄LjI = VIN/(400 Ω + REXT)ă
‫ܔ‬ᇀAD8221ࣷᇜ‫ڟ‬ट‫ࡗ܋‬ሜ‫ۉ‬უ‫ڦ‬ᆌᆩLj૩ස႐ሤ‫ׄأ‬ഗ
‫ ڪ‬Lj ᆌ ‫ ړ‬ᆩ ྔ և ‫ ۉ ૴ ز‬ፆ ࢅ ‫ گ‬ႅ ୑ ܾ ट ࠶ ഭ ࿋ (ස
BAV199LĂFJH1100ईSP720)ă
Rev. B | Page 18 of 24
AD8221
RF߅ඡ
CDᆖၚֶ‫ۯ‬႑ࡽLjCCᆖၚࠌఇ႑ࡽăᆌ๢‫ړ‬჋ስRࢅCC‫ڦ‬
ኵLj๑พೕ߅ඡፌၭăኟ๼෇‫܋‬ᇑ޶๼෇‫܋‬R × CC‫ڦ‬փ೅ದ
ࣷই‫گ‬AD8221‫ڦ‬CMRRႠీă๑CD‫ڦ‬ኵԲCC‫ٷ‬ᅃ߲ຕଉ
पLj੗ᅜই‫گ‬փ೅ದ‫ڦ‬ᆖၚLjܸٗ߀฀Ⴀీă
ሞᆶഽRF႑ࡽ‫ڦ‬ᆌᆩዐ๑ᆩ‫ٷݣ‬ഗ้Ljᅃӯ‫ۼ‬٪ሞRFኝୁ
࿚༶ăኄዖ߅ඡ੗ీࣷ՗၄ྺডၭ‫ڦ‬኱ୁ฿ۙ‫ۉ‬უăߛೕ
႑ࡽ੗ᅜཚࡗᅏ՗‫ٷݣ‬ഗ๼෇‫گڦ܋‬ཚRCྪஏ୳‫أ‬Ljස཮
48໯๖ă୳հഗߵ਍ᅜူ࠲ဣ๕‫ܔ‬๼෇႑ࡽ‫े੻ټ‬ᅜ၌
዆ǖ
FilterFreqDiff =
1
2πR(2CD + CC )
FilterFreqCM =
1
2πRCC
৛௢ᆌՎऺ
AD8221‫گڦ‬฿ۙࢅ੻ೕ୲‫ࠌߛڦాྷݔ‬ఇᅞ዆Բ๑ኮ‫ྺׯ‬
ൃ๕֪ଉᆌᆩ‫ڦ‬ਨॅ჋ስăස཮49໯๖Lj‫ൃۉ‬੗ᅜ኱থ૶
዁‫ٷݣ‬ഗ‫ڦ‬๼෇ă
+5V
ഄዐCD ≥ 10CCă
350Ω
350Ω
350Ω
350Ω
0.1μF
+IN
+15V
0.1μF
–IN
R
+IN
཮49. ৛௢ᆌՎऺ
10nF
R1
499 Ω
ኍ‫ܔ‬+5 Vֶ‫ݴ‬๼෇ADC‫ڦ‬±10 V๼෇႑ࡽۙ૙
VOUT
AD8221
R
Ⴙ‫ܠ‬ᆌᆩ‫ۼ‬Ⴔᄲ‫ܔ‬±10 V႑ࡽ৊ႜۙ૙ă‫ڍ‬๟Lj‫ڦৃړ‬Ⴙ‫ܠ‬
ADCࢅຕጴIC‫֑ۼ‬ᆩ‫ۉ‬უ࢔‫ۉڇڦگ‬ᇸࠃ‫ۉ‬ăُྔLjႎ႙
ADCᄺ֑ᆩֶ‫ݴ‬๼෇Ljᅺྺֶ‫ݴ‬๼෇ీ༵ࠃ߸ࡻ‫ࠌڦ‬ఇᅞ
዆ĂੇሯႠࢅ‫ۉگ‬ᇸ‫ۉ‬უႠీăᅺُLjॽ±10 V‫܋ڇ‬ᅏ՗‫ݣ‬
‫ٷ‬ഗᇑ+5 Vֶ‫ݴ‬ADCথ੨ࣷ๟߲వ༶LjႴᄲ৊ႜປ३ࢅ‫ۉ‬
ೝገ࣑‫ت‬૙ă཮50༵ࠃକᅃዖ঴ਦ‫ݛ‬ӄă
REF
4.02kΩ
–IN
1nF
10μF
0.1μF
–15V
03149-048
CC
཮48. พೕ߅ඡ(RFI)ᅞ዆
+12V
+2.5V
+12V
10μF
R3
1kΩ
0.1μF
+12V
0.1μF
C1
470pF
0.1μF
+IN
AD8022
+5V
R6
27.4Ω
AD8221
REF
–IN
R1
10kΩ
10nF
–12V
–12V
R5
499Ω
DVDD
AD7723
C2
220μF
+12V
VIN(–)
AGND DGND REF1 REF2
0.1μF
0.1μF
0.1μF
AVDD
0.1μF
OP27
R2
10kΩ
+5V
(½)
VIN(+)
10μF
+2.5V
1nF
4.02kΩ
CD
–
R7
27.4Ω
–12V
R4
1kΩ
AD8022
(½)
220nF
0.1μF
–12V
10nF
+5V
+VIN
10μF
0.1μF
VOUT
AD780
GND
཮50. ᇑֶ‫ݴ‬๼෇ADCথ੨
Rev. B | Page 19 of 24
2.5V
22μF
03149-050
CC
AD8221
R
10μF
+
03149-049
10μF
AD8221
ሞ޿ྊ೫঳ࠓዐLjOP27ยዃAD8221‫ڦ‬एጚ‫ۉ‬უăᅏ՗‫ݣ‬
‫ٷ‬ഗ‫ڦ‬๼‫؜‬႑ࡽٗOUTᆅগࢅREFᆅগฉइ‫ڥ‬ăଇ߲1 kΩ
‫ۉ‬ፆࢅᅃ߲499 Ω‫ۉ‬ፆᆩઠॽ±10 V႑ࡽປ३዁+4 Văᅃ߲
੗჋‫ۉڦ‬ඹC1੗ᆩઠ؊‫୳۠ंੇړ‬հഗăAD8022ᆩઠൻ
‫ۯ‬ADCă
ড‫گ‬LjՍ੗֪ଉডၭ‫ڦ‬႑ࡽăঢ়ࡗ100Ԡ‫ڦٷݣ‬኱ୁ฿ۙ
‫ۉ‬უ੗ཚࡗओ‫ݴ‬ഗ‫ݒ‬ઍྪஏሞAD8221‫ڦ‬๼‫܋؜‬ၩ‫أ‬ă
ሞ‫گ‬ೕ้LjOP1177ࣷ๑AD8221‫ڦ‬๼‫؜‬ই዁0 Văᅃ‫ڋ‬႑ࡽೕ
୲‫ࡗג‬fHIGH-PASSLjAD8221Ս๼‫؜‬ঢ়ࡗ‫ڦٷݣ‬๼෇႑ࡽă
ُྊ೫঳ࠓਏᆶ࿵‫ٷ‬ᆫ‫ۅ‬ă‫ۉأ‬ೝገ࣑ࢅປ३ኮྔLj໲‫ܔ‬
ဣཥሯำ‫ࠋڦ‬၅‫׉ݥ‬ၭăઠጲR1ࢅR2‫ڦ‬ሯำຌᇀADCଇୟ
๼෇‫ࠌڦ‬ఇሯำLj࢔ඹᅟԥᅞ዆ăR5‫ڦ‬ሯำ๟ዷᄲሯำ‫ڦ‬
1/3Ljᅺُ‫ܔ‬ဣཥሯำ‫ڦ‬ᆖၚ੗ࢮ୼ăປ३ഗࣷ໫ၭR3ࢅ
R4‫ڦ‬ሯำLjᅺُഄሯำᆖၚཞᄣ੗ࢮ୼փऺăُথ੨‫ۉ‬ୟ
‫ ٷ ຺ ڼ ڦ‬ᆫ ‫ ۅ‬๟ AD8221‫ ֑ ڦ‬ण ้ क़ ໫ ३ ᅃ Ԡ ă ঺ ዺ
OP27LjAD8221ኻႴ༵ࠃඇӦ‫ڦޗ‬ᅃӷ๼‫؜‬Ljᅺܸ႑ࡽ੗
ᅜ߸੺‫ॺں‬૬ăፌࢫLjAD8022‫ॺڦ‬૬้क़࢔‫܌‬Ljኄᅃ‫࢔ۅ‬
ᆶᅮLjᅺྺॺ૬้क़ሁ‫܌‬LjADC֑णຕ਍้ీ‫ݴ‬Ր‫ڦ‬࿋ຕ
৽ሁ‫ܠ‬ăኄዖದዃփৈ༵ࠃକປ३Ă‫ۉ‬ೝገ࣑Ăᇑֶ‫ݴ‬๼
෇ADCথ੨‫ݛ‬Ս‫ڦ‬༬ႠLjཞ้࣏ీԍ‫ߛ׼‬Ⴀీă
+VS
0.1μF
+IN
fHIGH-PASS =
R
499Ω
1
2πRC
AD8221
REF
–IN
R
15.8kΩ
C
1μF
+VS
঍ୁ᳘ࢇᅏ՗‫ٷݣ‬ഗ
0.1μF
0.1μF
֪ଉ‫ٷݣ‬ഗᆆ֠ሞሯำई฿ۙዐ‫ڦ‬ၭ႑ࡽ๟ᅃ߲཈቟ă཮
51໯๖‫ۉڦ‬ୟ੗ᅜ߀฀঍ୁၭ႑ࡽ‫ݴ‬Ր୲ăড‫ٷ‬ሺᅮ੗ॽ
‫ٷݣ‬ഗ‫ڦ‬ችࢇ๼෇ሯำই዁8 nV/√HzăኄᄣLjᅺྺԨ‫ڹ‬ሯำ
–VS
OP1177
10μF
–VS
10μF
0.1μF
–VS
཮51. ঍ୁ᳘ࢇ‫ۉ‬ୟ
Rev. B | Page 20 of 24
03149-051
+VS
AD8221
ྔႚ؅٫
3.20
3.00
2.80
8
3.20
3.00
2.80
5.15
4.90
4.65
5
1
4
PIN 1
0.65 BSC
0.95
0.85
0.75
0.15
0.00
1.10 MAX
0.38
0.22
COPLANARITY
0.10
0.80
0.60
0.40
8°
0°
0.23
0.08
SEATING
PLANE
COMPLIANT TO JEDEC STANDARDS MO-187-AA
཮52. 8ᆅগ‫ג‬ၭ႙‫ހ‬ጎ[MSOP]
(RM-8)
཮๖؅٫‫ڇ‬࿋ǖࡹ௝
5.00 (0.1968)
4.80 (0.1890)
8
1
5
4
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
COPLANARITY
0.10
SEATING
PLANE
6.20 (0.2441)
5.80 (0.2284)
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
0.31 (0.0122)
0.50 (0.0196)
0.25 (0.0099)
45°
8°
0°
0.25 (0.0098)
0.17 (0.0067)
1.27 (0.0500)
0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-012-A A
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
཮53. 8ᆅগՔጚၭ႙‫ހ‬ጎ[SOIC_N]
቏༹
(R-8)
཮๖؅٫‫ڇ‬࿋ǖࡹ௝ࢅ(ᆈ٫)
Rev. B | Page 21 of 24
012407-A
4.00 (0.1574)
3.80 (0.1497)
AD8221
۩ࠔኸళ
႙ࡽ
AD8221AR
AD8221AR-REEL
AD8221AR-REEL7
AD8221ARZ 2
AD8221ARZ-R72
AD8221ARZ-RL2
AD8221ARM
AD8221ARM-REEL
AD8221ARM REEL7
AD8221ARMZ2
AD8221ARMZ-R72
AD8221ARMZ-RL2
AD8221BR
AD8221BR-REEL
AD8221BR-REEL7
AD8221-EVAL
1
2
‫ۨܮ‬࿒‫ྷݔ܈‬
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
–40°C዁+85°C
߾ፕ1࿒‫ྷݔ܈‬
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
–40°C዁+125°C
‫ހ‬ጎ௮ຎ
8ᆅগ!SOIC_N
8ᆅগ!SOIC_NLj13"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!SOIC_NLj7"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!SOIC_N
8ᆅগ!SOIC_NLj7"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!SOIC_NLj13"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!MSOP
8ᆅগ!MSOPLj13"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!MSOPLj7"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!MSOP
8ᆅগ!MSOPLj7"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!MSOPLj13"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!SOIC_N
8ᆅগ!SOIC_NLj13"ਝ‫ࢅټ‬ਝಎ
8ᆅগ!SOIC_NLj7"ਝ‫ࢅټ‬ਝಎ
ೠࠚӱ
൩֖੊ሞ85°C዁125°C‫߾ాྷݔ‬ፕ‫ۆڦ‬႙߾ፕ༬Ⴀă
Z = RoHSग़ඹഗॲLj#՗๖RoHSग़ඹഗॲ‫ׂڦ‬೗੗ీሞ‫ۥ‬ևई‫ڹ‬և৊ႜՔ๎ă
Rev. B | Page 22 of 24
‫ހ‬ጎ჋ၜ
R-8
R-8
R-8
R-8
R-8
R-8
RM-8
RM-8
RM-8
RM-8
RM-8
RM-8
R-8
R-8
R-8
Ք๎
JLA
JLA
JLA
JLA#
JLA#
JLA#
AD8221
ጀ๥
Rev. B | Page 23 of 24
AD8221
ጀ๥
©2003–2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D03149–0–9/07(B)
Rev. B | Page 24 of 24